The date and time that the message was sent.

date

Control options for the current connection and list of hop-by-hop response fields.

The client would like to keep the connection open.

connection

Encoded information about your request from Cloudflare.

The request should use the URI specified, but subsequent requests should continue using the original URI. The request method should not change.

The last modified date for the requested object.

Indicates that different content may be provided to different clients, depending on the vary header.

Indicate a resource should be loaded from a different server while still appearing to be loaded from this server.

Standard response indicating a successful action. For GET requests this will be the resource, and for POST it will be the result of the action.